Investments - Schedule of Strategic Investments Activity (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Increase (Decrease) In Strategic Investments [Roll Forward]
Beginning balance	$ 11,527	$ 11,043
Interest accrued on available-for-sale debt securities	4	4
Purchases of strategic investments	1,072	442
Unrealized gain on strategic investments	825	(6)
Impairment of strategic investments	(184)
Ending balance	13,244	11,483
Limited Partnerships
Increase (Decrease) In Strategic Investments [Roll Forward]
Beginning balance	3,986	3,402
Interest accrued on available-for-sale debt securities	0	0
Purchases of strategic investments	574	442
Unrealized gain on strategic investments	154	(6)
Impairment of strategic investments	0
Ending balance	4,714	3,838
Available-for- Sale Debt Securities
Increase (Decrease) In Strategic Investments [Roll Forward]
Beginning balance	362	355
Interest accrued on available-for-sale debt securities	4	4
Purchases of strategic investments	0	0
Unrealized gain on strategic investments	0	0
Impairment of strategic investments	0
Ending balance	366	359
Equity Securities
Increase (Decrease) In Strategic Investments [Roll Forward]
Beginning balance	7,179	7,286
Interest accrued on available-for-sale debt securities	0	0
Purchases of strategic investments	498	0
Unrealized gain on strategic investments	671	0
Impairment of strategic investments	(184)
Ending balance	$ 8,164	$ 7,286